head to head
Neither is meaningfully harder - they pose close to the same test. The widest gap is reads, and it is a single point.

Execution · Pure Mechanics
WWII shooter remembered for its Omaha Beach landing and tense rifle duels.

Execution · Practiced Mastery
Co-op-focused action sequel hurling Titus against Tyranid swarms with parry-heavy melee combat.
Medal of Honor: Allied Assault leans Execution (Pure Mechanics); Warhammer 40,000: Space Marine 2 leans Execution (Practiced Mastery).
Same score on execution - which means the number cannot separate them. The difference is in what each one asks of you.
Medal of Honor: Allied Assault
classic FPS aim, leaning, and sniping
Warhammer 40,000: Space Marine 2
Parry, dodge and gun-strike timing against swarms
Medal of Honor: Allied Assault leans a little harder on reads, though the gap is small.
Medal of Honor: Allied Assault
historic multiplayer scene rewarded outguessing humans
Warhammer 40,000: Space Marine 2
PvP Eternal War adds some human prediction
Same score on variance - which means the number cannot separate them. The difference is in what each one asks of you.
Medal of Honor: Allied Assault
scripted ambushes surprise only once
Warhammer 40,000: Space Marine 2
Tyranid swarm spawns vary run to run
Warhammer 40,000: Space Marine 2 leans a little harder on optimization, though the gap is small.
Medal of Honor: Allied Assault
encounter memorization, especially Omaha Beach
Warhammer 40,000: Space Marine 2
Class builds and perk loadouts reward planning
A matching score does not mean a matching test. Two games can both sit at 10 on execution and demand completely different things of you - which is why the reasoning above matters more than the number beside it.